namespace zh
{
    enum HttpStateCode
    {
        CONTINUE              = 100,
        SWITCHING_PROTOCOLS   = 101,
        OK                    = 200,
        CREATED               = 201,
        NOT_CONTENT           = 202,
        MOVEED_PERMANENTLY    = 301,
        FOUND                 = 302,
        NOT_MIDIFIED          = 304,
        TEMPORARY_REDIRECT    = 307,
        BAD_REQUEST           = 400,
        UNAUTHORIZED          = 401,
        FORBIDDEN             = 403,
        NOT_FOUND             = 404,
        INTERNAL_SERVER_ERRPR = 500,
        BAD_GATEWAY           = 502,
        SERVICE_UNAVAILABLE   = 503,
        GATEWAY_TIMEOUT       = 504
    };
}